Your suitcase has been tagged and whisked away for a TSA security check before being loaded onto a plane en route to your final destination. How safe are the belongings inside? The TSA has fired nearly 400 employees for allegedly stealing from travelers, and for the first time, the agency is revealing the airports where those fired employees worked.

Newly released figures provided to ABC News by the TSA in response to a Freedom of Information Act request show that, unsurprisingly, many of the country’s busiest airports also rank at the top for TSA employees fired for theft.

Sixteen of the top 20 airports for theft firings are also in the top 20 airports in terms of passengers passing through.

At the head of the list is Miami International Airport, which ranks twelfth in passengers but first in TSA theft firings, with 29 employees terminated for theft from 2002 through December 2011. JFK International Airport in New York is second with 27 firings, and Los Angeles International Airport is third with 24 firings. JFK ranks sixth in passenger traffic, while LAX is third. Chicago, while second in traffic, ranked 20th in theft firings.